Tranny won't let me go throw gears like they're butter.
#1
SPQR
Thread Starter
iTrader: (1)
Join Date: Jun 2003
Location: Santa Cruz, CA
Posts: 1,123
Likes: 0
Received 0 Likes
on
0 Posts
Tranny won't let me go throw gears like they're butter.
Alright, riding with my brother the other day in his 240sx S14, he can throw gears like there's absolutely no resistance whatsoever. The same thing applies with his roomates' S5 GTU and S4 TII... Whenever I try to power shift the tranny won't let me throw gears in quickly. Could this be from:
1. My gear box not being broken in yet? (only 13,868 miles on it as we speak)
2. Something internally wrong?
3. Me just being a wuss and need to build up the muscles in my right arm?
I just changed out the tranny fluid over Thanksgiving with Redline MT90 so it's not the fluid.
Thanks
Michael
88 10AE "Still poking fun at RarestRX"
1. My gear box not being broken in yet? (only 13,868 miles on it as we speak)
2. Something internally wrong?
3. Me just being a wuss and need to build up the muscles in my right arm?
I just changed out the tranny fluid over Thanksgiving with Redline MT90 so it's not the fluid.
Thanks
Michael
88 10AE "Still poking fun at RarestRX"
#3
Engine, Not Motor
iTrader: (1)
Join Date: Feb 2001
Location: London, Ontario, Canada
Posts: 29,791
Likes: 0
Received 114 Likes
on
96 Posts
The Redline is a lot more slippery then standard fluid. I have actually seen this fluid reduce the efficiency of the syncros and cause harder shifting. It will definitely eliminate the common "grinding".
#4
SPQR
Thread Starter
iTrader: (1)
Join Date: Jun 2003
Location: Santa Cruz, CA
Posts: 1,123
Likes: 0
Received 0 Likes
on
0 Posts
Tofuball: I will try to compare them, but it won't be easy considering my brother's roommates live far away.
Aaron: The Redline did take away the annoying grinding from 2nd gear, but it still does it sometimes, what would cause it to only happen 1 in 5 times?
Aaron: The Redline did take away the annoying grinding from 2nd gear, but it still does it sometimes, what would cause it to only happen 1 in 5 times?
#7
What R U thinking self?
Join Date: Mar 2002
Location: Stockton, CA
Posts: 2,333
Likes: 0
Received 0 Likes
on
0 Posts
What in the *** is "throwing gears" that does not sound like a good thing to me.
You can't shift? Please explain what it is your rambling on about.
Thanks,
-Robert
You can't shift? Please explain what it is your rambling on about.
Thanks,
-Robert
Trending Topics
#9
I came, I saw, I boosted.
Join Date: Apr 2001
Location: Windsor, Ontario, Canada
Posts: 1,921
Likes: 0
Received 0 Likes
on
0 Posts
I'm wondering about putting a little bit of friction modifier in there... the stuff for LSD's... just to make the synchros bite... sortof like the ATF I guess.
Mine is VERY notchy. No grinding, just notchy.
Mine is VERY notchy. No grinding, just notchy.
#11
Full Member
Join Date: Mar 2002
Location: Delphi, IN
Posts: 117
Likes: 0
Received 0 Likes
on
0 Posts
I beleive friction modifiers for LSDs make the clutch plates have less friction so they don't chatter and cause excessive wear. They wouldn't make the synchros 'bite'.
- Cooper
- Cooper
#12
Alright, well I'm N4ji's brother. When I shift I always use the clutch and my gearbox goes in out of gears with little effort (this is in my 240). The first time I drove his FC there was a ton of resistance when I tried to power shift into second from first using the clutch. Almost like the syncro wasn't working. It felt like I was hitting a brick wall inbetween 1st and 2nd gears. Even after I helped him change the oil it still felt like this. It even feels like this when shifting into second under normal driving conditions. All of the other gears are fine iirc. Next time I drive it I'll try double clutching to see if that helps.
Last edited by thelinja; 12-24-03 at 11:50 PM.
#15
Full Member
Join Date: Dec 2003
Location: Vancouver Canada
Posts: 139
Likes: 0
Received 0 Likes
on
0 Posts
What about the shifter bushings. Does the shift know wobble when in gear?
Remove center consol and but lots of silicone lube ont eh bushings.(well for my honda i did that) Not sure if you can do the same for an RX, never had a problem with my TII or R2.
Good luck tho,
Remove center consol and but lots of silicone lube ont eh bushings.(well for my honda i did that) Not sure if you can do the same for an RX, never had a problem with my TII or R2.
Good luck tho,
#16
Lava Surfer
Join Date: Mar 2002
Location: Kailua, HI
Posts: 2,354
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by n4ji
Tofuball: I will try to compare them, but it won't be easy considering my brother's roommates live far away.
Aaron: The Redline did take away the annoying grinding from 2nd gear, but it still does it sometimes, what would cause it to only happen 1 in 5 times?
Tofuball: I will try to compare them, but it won't be easy considering my brother's roommates live far away.
Aaron: The Redline did take away the annoying grinding from 2nd gear, but it still does it sometimes, what would cause it to only happen 1 in 5 times?
#18
truespin, not tirespin
Join Date: Nov 2003
Location: Belpre, Ohio
Posts: 655
Likes: 0
Received 0 Likes
on
0 Posts
I read somewhere that RX7 transmissions were naturally notchy. When cold, mine is very notchy, especially in 1st and 2nd. After it warms up, it seems to be ok... still notchy, but not as bad.
#19
I came, I saw, I boosted.
Join Date: Apr 2001
Location: Windsor, Ontario, Canada
Posts: 1,921
Likes: 0
Received 0 Likes
on
0 Posts
My 1st gen tranny from my Mariah-bodied '79 RX-7 was awesome! Beat every 2nd gen I've had hands down. Rock solid, light touch, short throws, no notchiness. The shifter had NO flex or anything to it, it was amazing, felt like it was made of cast iron filled with butter (In a good way). Too bad it was only a 4 speed!
#21
SPQR
Thread Starter
iTrader: (1)
Join Date: Jun 2003
Location: Santa Cruz, CA
Posts: 1,123
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by 89Turbo944
What about the shifter bushings. Does the shift know wobble when in gear?
Remove center consol and but lots of silicone lube ont eh bushings.(well for my honda i did that) Not sure if you can do the same for an RX, never had a problem with my TII or R2.
Good luck tho,
What about the shifter bushings. Does the shift know wobble when in gear?
Remove center consol and but lots of silicone lube ont eh bushings.(well for my honda i did that) Not sure if you can do the same for an RX, never had a problem with my TII or R2.
Good luck tho,
Michael
#24
Originally posted by bingoboy
the ratio from 1st to 2nd has a big enough difference that if you are slamming gears at 8000rpm you can grind even with a happy transmission.
the ratio from 1st to 2nd has a big enough difference that if you are slamming gears at 8000rpm you can grind even with a happy transmission.
Exactly ^^^
1st and 2nd gears have a pretty serious difference in gear ratios. So big, that you should NOT be slamming into second all the time. This will destroy your syncro, and possibly the gear.
When you put redline MT90 in your tranny, it will take about 500 miles for it to get to its peak performance. I put it in my 91 vert and it was notchier than before for the first hundred miles, then roughly equivalent to the old fluid for the next 200 miles, then just kept getting better after that - up until 500 miles.
Good luck!